Madeira-320 flame retardant fabric update to EN 11611:2015

August 2019, AITEX lab (Spain) has tested Madeira-320 fr fabric to the new version of safety standard for Protective clothing for use in welding and allied processes. Madeira-320  confirmed its compliance to ISO EN 11611:2015 and received a new certificate, which you can see below.

According to EN ISO 11611:2015, Madeira-320 has been successfully tested to the following tests:

  1. Limited Flame Spread (ISO 15025:2002, Method B) – performance level  A2

    Madeira-320 results for new samples and after 5 washes @60ºC ISO 6330:2012, method 6N, F drying (tumble dry)

  • Flaming to top or either side edge: No – PASS
  • Hole formation: No – PASS
  • Loose waste: No – PASS
  • After flame time (s): No – PASS
  • Afterglow time (s): No – PASS


  1. Determination of dimensional change in domestic washing and drying (ISO 5077:2008) – performance level  PASS

    Madeira-320 results for new samples and after 5 washes @60ºC ISO 6330:2012, method 6N, F drying (tumble dry)

Direction Dimensional
change (%)
Warp -2,0
Weft -2,0


  1. Fabric Tensile Strength and Elongation (EN ISO 13934-1:2013) – performance level  PASS
  • Wrap: 1600N PASS (must resist ≥ 400 N)
  • Weft: 1000N PASS (must resist ≥ 400 N)


  1. Small Molten Metal Splash (ISO 9150:1988) – performance level  Class 1
  • Average value Molten iron (g): > 22
Class 1 Minimum 15 drops 
Class 2 Minimum 25 drops 


  1. Radiant Heat (ISO 6942)  performance level Class1
  • Average value for RHTI 24 (s): 12,2

Heat transfer index RHTI 24

Class 1

Class 1

RHTI 24 ≥ 7s ≥ 16s


  1. Vertical Resistance (EN 1149-2:1997)  – performance level Pass
  • Average value: 4,74∙107

According to the Standard UNE-EN ISO 11611:2015, the vertical electric resistance must be greater than 10Ohm

ISO 11611:2015 specifies minimum basic safety requirements and test methods for protective clothing during welding and allied processes with comparable risks. This type of protective clothing is intended to protect the wearer against spatter (small splashes of molten metal), short contact time with flame, radiant heat from an electric arc used for welding and allied processes.

Madeira-320 is pure cotton flame-retardant protective fabric made of a long-staple pure cotton. It can be used for middleweight welders clothing as well as for different metal processing works in heavy machinery, automotive manufacturing, etc.

You can find all the certificates and additional information on the product page.